CVE-2020-8561 (GCVE-0-2020-8561)

Vulnerability from cvelistv5 – Published: 2021-09-20 17:05 – Updated: 2026-06-01 21:45
VLAI?
Title
Webhook redirect in kube-apiserver
Summary
A security issue was discovered in Kubernetes where actors that control the responses of MutatingWebhookConfiguration or ValidatingWebhookConfiguration requests are able to redirect kube-apiserver requests to private networks of the apiserver. If that user can view kube-apiserver logs when the log level is set to 10, they can view the redirected responses and headers in the logs.
Severity ?
4.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
CWE
  • CWE-441 - Unintended Proxy or Intermediary
Assigner
References
Impacted products
Vendor Product Version
Kubernetes Kubernetes Affected: 0 , < * (semver)
Create a notification for this product.
Credits
QiQi Xu
Show details on NVD website
To clipboard 

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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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